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United States Patent | 5,749,275 |
Dundas ,   et al. | May 12, 1998 |
An apparatus and method for trimming an inner ring from the neck flange of a blow-molded plastic bottle by extending a reverse punch having a lead end and a trailing end larger than the lead end into the bottle through the flange opening, elastically bending the flange into the interior of the bottle as the punch passes and withdrawing the reverse punch from the bottle and trimming a ring from the flange.
Inventors: | Dundas; Dennis L. (Dover, PA); Klinedinst; Paul W. (Windsor, PA) |
Assignee: | Graham Engineering Corporation (York, PA) |
Appl. No.: | 528347 |
Filed: | September 14, 1995 |
Current U.S. Class: | 83/24; 83/681; 83/914; 264/536; 425/527; 425/806 |
Intern'l Class: | B26D 007/02; B26D 005/08 |
Field of Search: | 83/946,914,681,682,100,111,54,24 264/536 425/806,527 |
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